News Releases

Displaying 51 - 100 of 132.

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The International Lake Ontario – St. Lawrence River Board (Board) announced today that, in directing Lake Ontario outflows, it has been given the ability to continue deviating from the flow specified by Plan 2014. The Board has had authority to deviate from Plan 2014 since May 7 th, after Lake...
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To provide the highest attainable relief to all interests, both upstream and downstream of the Moses-Saunders Dam, outflows remain at record-high rates for this time of year, eclipsing the outflows released at this same time in any other years dating back to 1900. As Lake Ontario continues its...
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Due to the declining Lake Ontario level combined with extraordinarily high outflows still being released through Moses-Saunders Dam, the forebay upstream of the dam has seen a significant sustained drop in water levels, making it extremely challenging to haul-out boats that would normally be removed...
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Lake Ontario levels reached 75.50 m (247.7 ft) and the record outflows of 10,400 m3/s (367,270 cubic feet per second) were reduced to 10,110 m3/s (357,000 cubic feet per second) at 12:01AM on August 21, 2019.
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Water levels on Lake Ontario have begun to decline more rapidly in recent days due to a combination of continued record-high outflows, declining inflows from Lake Erie and generally drier weather across the basin. Lake Ontario’s level remains at record-highs for this time of year, but it has...
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Lake Ontario water levels continue to decline slowly as the Board is maintaining record outflows of 10,400 m 3/s (367,270 cubic feet per second). At its meeting on July 19 th, the Board deliberated several outflow strategies above 10,400 m 3/s and considered both the additional decline on Lake...
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Water levels are declining throughout the system as warmer, drier weather and record Lake Ontario outflows of 10,400 m 3/s (367,270 cubic feet per second) continue. At its meeting on July 5 th, the Board reached consensus to maintain the current outflow, which is 200 m 3/s (7,060 cfs) higher than...
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Water levels are expected to decline throughout the system this week as drier conditions are forecast and record Lake Ontario outflows of 10,400 m 3/s (367,270 cubic feet per second) continue. At its meeting on June 28 th, the Board reached consensus to maintain the current outflow and continue...
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The Board is doing everything possible to provide all possible relief to Lake Ontario and upper St. Lawrence River residents, while considering impacts throughout the system. During its meeting on 21 June, the Board decided to maintain outflows at their current record-high levels, 10,400 m 3/s (367...
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LAKE ONTARIO OUTFLOWS TO BE MAINTAINED ABOVE NAVIGATION LIMIT - The Board is actively exploring deviating beyond an outflow of 10,400 m3/s (367,270 cfs) reached on June 13th, with the intent to provide relief to shoreline stakeholders upstream of the Moses-Saunders Power Dam.
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LAKE ONTARIO OUTFLOWS TO BE INCREASED ABOVE NAVIGATION LIMIT - The International Lake Ontario – St. Lawrence River Board (Board) will continue to increase outflows to provide relief to shoreline interests on Lake Ontario after it agreed to raise flows above the regulation plan’s maximum L-Limit...
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LAKE ONTARIO REACHING PEAK, OUTFLOWS INCREASED RAPIDLY - Lake Ontario water levels have started to stabilize due to decreased precipitation and increased Lake Ontario outflows, which have been increasing rapidly as Ottawa River flows have continued to drop from their record highs this spring.
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LAKE ONTARIO REACHES RECORD, BOARD CONTINUES TO RESPOND - Lake Ontario has reached 75.90 m (249.02 ft), exceeding the record peak of 75.88 m (248.95 ft) set in 2017, and will continue rising gradually over the next several days, but is expected to reach this year’s peak within one to three weeks.
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Lake Ontario water levels have reached 75.85 m (248.85 ft) and will likely reach or exceed the 2017 record high of 75.88 m (248.95 ft) with the next few days. Forecasts show that Lake Ontario levels are expected to crest within the next one to three weeks, mostly likely within a few centimeters...
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Outflows from Lake Ontario have increased once again after they were temporarily reduced after heavy rainfall a week ago caused a second peak in Ottawa River flows, which led to an increase in St. Lawrence River water levels and additional flooding on the St. Lawrence River near Montreal. With...
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LAKE ONTARIO OUTFLOWS CONTINUE TO BE ADJUSTED TO BALANCE HIGH WATER LEVELS - With Lake Ontario caught between a flooding Lake Erie and a flooded lower St. Lawrence River, outflows from Lake Ontario continue to be frequently adjusted to balance the impacts of high water levels that are occurring...
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A major flood event is under way in the lower St. Lawrence River with levels in some areas above 2017 peaks, while levels throughout the Lake Ontario - St. Lawrence River system are expected to keep rising significantly this coming week due to rainfall across the basin. The Lake Ontario outflows are...
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HIGH LAKE ONTARIO OUTFLOWS CONTINUE - The outflow from Lake Ontario remains very high and it continues to be gradually increased in response to rising Lake Ontario levels and persistently high inflows from Lake Erie.
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PLAN 2014 CONTINUES TO REDUCE LAKE ONTARIO FLOOD RISKS. BOAT HAULOUT ASSISTANCE PLANNED FOR LAKE ST. LAWRENCE -- Lake Ontario water levels have recently dipped below long-term average for the first time since January 2017.
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NEW REPORT ON 2017 LAKE ONTARIO AND ST. LAWRENCE RIVER FLOODING -- A report released today by the International Lake Ontario-St. Lawrence River Board (the Board) provides a detailed account of the historic 2017 flood, and the Board’s actions under Plan 2014 to regulate Lake Ontario outflows in the...
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LAKE ONTARIO PEAKS AS OUTFLOWS CONTINUE TO REMAIN HIGH -- Spring has come and mostly gone in the Lake Ontario – St. Lawrence River system, and much more moderate weather conditions have left water levels throughout the basin well below the extreme highs that occurred last year.
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Water levels across the Lake Ontario - St. Lawrence River system have now begun their typical spring rise, but several months of high outflows combined with favorable winter weather conditions has levels back within their normal range and well below those seen during the historic high water event...
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The average Lake Ontario outflow during the month of February was the highest in recorded history.
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Several months of maximizing outflows has dropped Lake Ontario at an unprecedented rate and to well below the record peak set at the end of May 2017, yet water levels remain relatively high for this time of year after a cold and wet start to winter.
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The International Lake Ontario - St. Lawrence River Board (Board) will temporarily reduce outflows through the Moses-Saunders Dam on October 7-8 in an effort to raise water levels on Lake St. Lawrence and provide a one-time opportunity to assist with end-of-season boat haul outs.
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A stretch of mild, dry weather has accelerated the decline in Lake Ontario water levels in recent weeks, bringing some welcome signs of relief to many of those impacted by wide-spread flooding and coastal damages across the Lake Ontario – St. Lawrence River basin this year.
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Record-breaking natural conditions have exceeded the capability of water level regulation to prevent the wide-spread flooding and coastal impacts experienced across the Lake Ontario – St. Lawrence River basin.
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Lake Ontario levels have been dropping rapidly compared to average rates through the months of June and July.
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Following record setting wet weather in April and May, heavy rains and storms have been frequent and widespread June through mid-July, resulting in continued wet conditions and causing high water levels to persist throughout much of the Lake Ontario - St. Lawrence River system.
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At its meeting on June 30th, the International Lake Ontario – St. Lawrence River Board agreed to continue releasing an outflow of 10,400 cubic metres per second (m3/s) (367,300 cubic feet per second), as conditions allow, in order to help lower the level of Lake Ontario.
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At its conference call on Monday 19 June 2017, the International Lake Ontario – St. Lawrence River Board agreed to continue efforts to further reduce high Lake Ontario levels.
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At its conference call on Monday, the International Lake Ontario – St. Lawrence River Board decided to temporarily increase the outflow from Lake Ontario from 10,200 m3/s (360,200 ft3/s) to 10,400 m3/s (367,300 ft3/s) for 72 hours with the hope of sustaining the increase for a longer period of time...
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At its weekly conference call, the International Lake Ontario – St. Lawrence River Board decided to maintain the outflow from Lake Ontario at 10,200 m3/s (360,200 cfs) again for at least another week to address high water levels and associated impacts throughout the system.
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At its weekly conference call, the International Lake Ontario – St. Lawrence River Board decided to maintain the outflow from Lake Ontario at 10,200 m3/s (360,200 cfs) for at least another week to address high water levels and associated impacts throughout the system.
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The International Lake Ontario – St. Lawrence River Board assessed current and expected conditions to determine the best outflow release strategy to address high water level and associated impacts throughout the system.
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This week the International Lake Ontario – St. Lawrence River Board assessed current and expected conditions to determine the best outflow release strategy which would continue to address high water level and associated impacts throughout the system.
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Exceptionally wet weather in April has resulted in rapidly rising water levels throughout the Lake Ontario – St. Lawrence River system.
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Extreme wet weather in April has resulted in high water levels across the Lake Ontario - St. Lawrence River system. Rainfall has been well above normal across the entire basin, with some areas having received at least twice their average amounts since the start of the month.
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A series of storm events passed through the Lake Ontario-St. Lawrence River system from April 4-10, resulting in significant precipitation across the region.
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Board announces leadership changes, reviews conditions Leadership of the International St. Lawrence River Board of Control (Board) has recently changed.
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Wondering why water levels near you seem higher than normal this spring? Indeed, across most of the Lake Ontario – St. Lawrence River system, water levels have been above their long-term average (calculated from records dating from 1918), largely the result of the mild, wet weather experienced over...
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The International St. Lawrence River Board of Control (Board) will reduce outflows beginning on October 10 in efforts to temporarily raise water levels and assist with end-of-season boat haul out in Lake St. Lawrence.
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The International St. Lawrence River Board of Control has agreed to allow temporary flow fluctuations at the Moses-Saunders Hydropower Dam in order to assist in efforts to salvage a sunken tug boat that remains located in the North Channel of the St. Lawrence River at Cornwall, Ontario.
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Following an unusually dry and cool February and March, water levels in the Lake Ontario-St. Lawrence River system were lower than the long-term average at the start of April.
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The International St. Lawrence River Board of Control (Board) recently reviewed conditions in theLakeOntario-St.Lawrence River system and has decided to continue to follow the Plan-prescribed outflows until winter ice conditions require otherwise.
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The International St. Lawrence River Board of Control (Board) recently reviewed conditions in the Lake Ontario-St. Lawrence River system and has decided to return to Plan flows by the weekend.
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The International St. Lawrence River Board of Control (Board) recently reviewed conditions in the Lake Ontario-St. Lawrence River system and has decided to return to Plan flows as soon as possible.
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The International St. Lawrence River Board of Control (Board) recently reviewed conditions in theLakeOntario-St.Lawrence River system and has decided to continue to follow Plan flows. The Board will also continue to permit additional under- or over-discharges that may be necessary to address...
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The International St. Lawrence River Board of Control (Board) recently reviewed conditions in the Lake Ontario-St.Lawrence River system and noted the rapid onset of winter.
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The International St. Lawrence River Board of Control (Board) recently reviewed conditions in the Lake Ontario-St.Lawrence River system and agreed to release outflows slightly above those of the regulation plan, Plan 1958-D, to gradually reduce the 2.7 cm (1.1 in) of water stored on Lake Ontario.
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